fuel cap AUDI A8 1998 D2 / 1.G ATQ Engine Readiness Code Workshop Manual

01-108

Work step 12: Diagnostic of tank seal

Test requirements

Engine running at idle:
Intake Air Temperature (IAT) less than 95
C display group 004, display field 4.

Coolant temperature at least 80 C
Display group 4, display field 3

Fuel filler cap opened briefly (to reduce
pressure).
Basic Settin
g
Q
Input displa
y group number XXX

When indicated on display:
- Press buttons -0-, -7- and -1- to select "display group number 071" and
press -Q- button to confirm input.
System in Basic Setting 71
1
2
3
4

When indicated on display:
Notes:
Test lasts approx. 90 seconds.When the diagnostic of tank seal is performed several times in a row,
the fuel filler cap must be opened briefly before each test to release
pressure.
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